What is expand P(1,7,-5)Q(-9,1,-5) ?

The solution to expand P(1,7,-5)Q(-9,1,-5) is -1*PQ,7,9,1,-1*PQ,7,5+5*9PQ,1,5*5

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expand P(1,7,-5)Q(-9,1,-5)

expand

P (1, 7, - 5) Q (- 9, 1, - 5)

- 1 \cdot PQ, 7, 9, 1, - 1 \cdot PQ, 7, 5 + 5 \cdot 9 PQ, 1, 5 \cdot 5

Solution steps

P (1, 7, - 5) Q (- 9, 1, - 5)

= (1 \cdot 7,, - 5) (- 9 \cdot 1,, - 5) PQ

Expand

(1, 7, - 5) (- 9, 1, - 5) : - 1, 7, 9, 1, - 1, 7, 5 + 5 \cdot 9, 1, 5 \cdot 5

= PQ (- 1, 7, 9, 1, - 1, 7, 5 + 5 \cdot 9, 1, 5 \cdot 5)

Expand

PQ (- 1, 7, 9, 1, - 1, 7, 5 + 5 \cdot 9, 1, 5 \cdot 5) : - 1 \cdot PQ, 7, 9, 1, - 1 \cdot PQ, 7, 5 + 5 \cdot 9 PQ, 1, 5 \cdot 5

= - 1 \cdot PQ, 7, 9, 1, - 1 \cdot PQ, 7, 5 + 5 \cdot 9 PQ, 1, 5 \cdot 5

6 (5 + 7)

3 (2 + 7)

\frac{\partial}{\partial r} (θ (1 - cos (r))) - z

(4 x + 4Δ x - 5) (7 x + 9)

(\frac{n ^{2}}{5} + 4) (\frac{2 n ^{2}}{3} - 7)

What is expand P(1,7,-5)Q(-9,1,-5) ?
The solution to expand P(1,7,-5)Q(-9,1,-5) is -1*PQ,7,9,1,-1*PQ,7,5+5*9PQ,1,5*5